interviewing

The list has been talking about interviewing alot lately, I have a question
that maybe some of you could comment on.

When you go to an interview, what do you bring, how do you present? Do you
put artwork in a portfolio or do you present it in some other fashion?
Anyone have tips on other ways to present photographs and artwork and what
else to bring to an interview? I am not sure how to work in this stuff, do I
offer to show it, or wait till they ask what I have brought? I was kind of
wishing I could do something more than a portfolio to stand out a bit, the
job market is tough where I live.
Thanks.
SusanMuseee